osd: use deque instead of list for op wq to_process

Fewer allocations.

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/osd/OSD.h b/src/osd/OSD.h
index b864dda040ce104bc084ed09c84e5a676420e39f..52692f7057ce403af27e289dbcf21d6f10dd0af2 100644 (file)
--- a/src/osd/OSD.h
+++ b/src/osd/OSD.h
@@ -1632,7 +1632,7 @@ private:
       OSDMapRef waiting_for_pg_osdmap;
       struct pg_slot {
        PGRef pg;                     ///< cached pg reference [optional]
-       list<PGQueueable> to_process; ///< order items for this slot
+       deque<PGQueueable> to_process; ///< order items for this slot
        int num_running = 0;          ///< _process threads doing pg lookup/lock
 
        /// true if pg does/did not exist. if so all new items go directly to